package com.study.handler;

import com.study.model.RpcRequest;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.util.concurrent.Callable;

public class UserClientHandler extends ChannelInboundHandlerAdapter implements Callable {

    private ChannelHandlerContext context;
    private String result;
    private RpcRequest rpcRequest;

    public void channelActive(ChannelHandlerContext ctx) {
        context = ctx;
    }

    /**
     * 收到服务端数据，唤醒等待线程
     * @param ctx
     * @param msg
     */
    public synchronized void channelRead(ChannelHandlerContext ctx, Object msg) {
        result = msg.toString();
        notify();
    }

    /**
     * 写出数据，开始等待唤醒
     * @return
     * @throws InterruptedException
     */
    public synchronized Object call() throws InterruptedException {
        context.writeAndFlush(rpcRequest);
        wait();
        return result;
    }

    /**
     * 设置参数
     * @param request
     */
    public void setPara(RpcRequest request) {
         this.rpcRequest = request;
     }

}
